Two-dimensional slices through the log likelihood, normalized to the maximum value in each panel. The vertical and horizontal axis in each panel correspond to the bubble radius, R_b, and redshift axis of the center, ${\mathcal{O}}_{\mathrm{b}}=(x_b=x_b^{\mathrm{true}},y_b=y_b^{\mathrm{true}},z_b)$. The true values, $(R_{\mathrm{b}}^{\mathrm{true}},z_b^{\mathrm{true}})=(10\mathrm{cMpc},0\mathrm{cMpc})$, are demarcated with the dashed lines. The mock observation in this example was made at z = 7.5, assuming ${\overline{x}}_{\mathrm{H}}=0.65$. The different columns represent different numbers of galaxies that were used for inference (8 galaxies on the left, 24 galaxies in the middle, and 48 galaxies on the right). The different rows correspond to different realizations of the EoR morphology and galaxy samples.